| 49:1 | Transportation--Volume 1 | |
| 49:1.0.1 | Subtitle A - Office of the Secretary of Transportation | |
| PARTS 1 - 99 |
| 49:2 | Transportation--Volume 2 | |
| 49:2.1 | Subtitle B - Other Regulations Relating to Transportation | |
| PARTS 100 - 177 |
| 49:2.1.1 | CHAPTER I - PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION | |
| PARTS 100 - 177 |
| 49:3 | Transportation--Volume 3 | |
| 49:3.1 | Subtitle B - Other Regulations Relating to Transportation (Continued) | |
| PARTS 178 - 199 |
| 49:3.1.1 | CHAPTER I - PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) | |
| PARTS 178 - 199 |
| 49:4 | Transportation--Volume 4 | |
| 49:4.1 | Subtitle B - Other Regulations Relating to Transportation (Continued) | |
| PARTS 200 - 299 |
| 49:4.1.1 | CHAPTER II - FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION | |
| PARTS 200 - 299 |
| 49:5 | Transportation--Volume 5 | |
| 49:5.1 | Subtitle B - Other Regulations Relating to Transportation (Continued) | |
| PARTS 300 - 399 |
| 49:5.1.1 | CHAPTER III - FEDERAL MOTOR CARRIER SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION | |
| PARTS 300 - 399 |
| 49:6 | Transportation--Volume 6 | |
| 49:6.1 | Subtitle B - Other Regulations Relating to Transportation (Continued) | |
| PARTS 400 - 571 |
| 49:6.1.1 | CHAPTER IV - COAST GUARD, DEPARTMENT OF HOMELAND SECURITY | |
| PARTS 400 - 499 |
| 49:6.1.2 | CHAPTER V - NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION | |
| PARTS 500 - 571 |
| 49:7 | Transportation--Volume 7 | |
| 49:7.1 | Subtitle B - Other Regulations Relating to Transportation (Continued) | |
| PARTS 572 - 999 |
| 49:7.1.1 | CHAPTER V - NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) | |
| PARTS 572 - 599 |
| 49:7.1.2 | CHAPTER VI - FEDERAL TRANSIT ADMINISTRATION, DEPARTMENT OF TRANSPORTATION | |
| PARTS 600 - 699 |
| 49:7.1.3 | CHAPTER VII - NATIONAL RAILROAD PASSENGER CORPORATION (AMTRAK) | |
| PARTS 700 - 799 |
| 49:7.1.4 | CHAPTER VIII - NATIONAL TRANSPORTATION SAFETY BOARD | |
| PARTS 800 - 999 |
| 49:8 | Transportation--Volume 8 | |
| 49:8.1 | Subtitle B - Other Regulations Relating to Transportation (Continued) | |
| PARTS 1000 - 1199 |
| 49:8.1.1 | CHAPTER X - SURFACE TRANSPORTATION BOARD | |
| PARTS 1000 - 1199 |
| 49:9 | Transportation--Volume 9 | |
| 49:9.1 | Subtitle B - Other Regulations Relating to Transportation (Continued) | |
| PARTS 1200 - 1699 |
| 49:9.1.2 | CHAPTER XI - RESEARCH AND INNOVATIVE TECHNOLOGY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION [RESERVED] | |
| PARTS - |
| 49:9.1.1 | CHAPTER X - SURFACE TRANSPORTATION BOARD (CONTINUED) | |
| PARTS 1200 - 1399 |
| 49:9.1.3 | CHAPTER XII - TRANSPORTATION SECURITY ADMINISTRATION, DEPARTMENT OF HOMELAND SECURITY | |
| PARTS 1500 - 1699 |